Certain, probable, unlikely and impossible
key notes:
What does it mean?
- These words help us talk about chances.
- They tell us how likely something is to happen.
β Certain (Will definitely happen)
- Certain means 100% sure
- It will always happen
Examples:
- The sun will rise π
- You will grow older
- We need air to breathe
π It always happens
π Probable (Will likely happen)
- Probable means it will probably happen
- There is a good chance
Examples:
- It may rain when clouds are dark π§οΈ
- You may pass if you study
- A tossed coin may land on heads
π It can happen often
π€Unlikely (May not happen)
- Unlikely means it may not happen
- There is a small chance
Examples:
- Snow in summer βοΈ
- Winning a big prize without trying
- Finding a toy in an empty box
π It rarely happens
βImpossible (Cannot happen)
- Impossible means it cannot happen
- There is no chance
Examples:
- A cow flying πβοΈ
- A fish walking on land ππΆ
- The sun rising at night π
π It never happens
π Quick Activity for Kids
Ask students to say if these are certain, probable, unlikely, or impossible:
- Eating food π
- Seeing a rainbow π
- A dog talking πΆ
- Rain in monsoon π§οΈ
Learn with an example
πIf you select a marble without looking, how likely is it that you will pick a black one?

- certain
- probable
- unlikely
- impossible
None of the marbles are black. It is impossible to pick a black marble.
πIf you select a marble without looking, how likely is it that you will pick a black one?

- certain
- probable
- unlikely
- impossible
- Count the number of marbles. There are 4 marbles.
Count how many marbles are black. 1 marble is black.
Count how many marbles are blue. 3 marbles are blue. - There are fewer marbles that are black. It is unlikely that you will pick a black marble.
πIf you select a marble without looking, how likely is it that you will pick a black one?

- certain
- probable
- unlikely
- impossible
- Count the number of marbles. There are 7 marbles.
Count how many marbles are black. 4 marbles are black.
Count how many marbles are orange. 3 marbles are orange. - There are more marbles that are black. It is probable that you will pick a black marble.
Let’s practice!

